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Sale of Beacon Hill (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 31, 2016 | Jun. 30, 2017 | Jun. 30, 2017 | Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash consideration received net of cash disposed |  |  | $ 500,000 | $ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Beacon Hill |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Cash consideration received net of cash disposed | $ 1,200,000 |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Beacon Hill | Promissory Note |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Contingent consideration received | $ 1,500,000 |  |  |
Proceeds from collection of notes receivable |  | $ 500,000 |  |

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